Exploiting Synergetic Effects of Graphene Oxide and a Silver-Based Metal–Organic Framework To Enhance Antifouling and Anti-Biofouling Properties of Thin-Film Nanocomposite Membranes
    Mostafa Dadashi Firouzjaei, Ahmad Arabi Shamsabadi, Sadegh Aghapour Aktij, S. Fatemeh Seyedpour, Mohammad Sharifian Gh., Ahmad Rahimpour, Milad Rabbani Esfahani, Mathias Ulbricht, Masoud Soroush
 Abstract
Thin-film composite (TFC) membranes still suffer from fouling and biofouling. In this work, by incorporating a graphene oxide (GO)–silver-based metal–organic framework (Ag-MOF) into the TFC selective layer, we synthesized a thin-film nanocomposite (TFN) membrane that has notably improved anti-biofouling and antifouling properties. The TFN membrane has a more negative surface charge, higher hydrophilicity, and higher water permeability compared with the TFC membrane. Fluorescence imaging revealed that the GO–Ag-MOF TFN membrane kills Escherichia (E.) coli more than the Ag-MOF TFN, GO TFN, and pristine TFC membranes by 16, 30, and 92%, respectively. Forward osmosis experiments with E. coli and sodium alginate suspensions showed that the GO–Ag-MOF TFN membrane by far has the lowest water flux reduction among the four membranes, proving the exceptional anti-biofouling and antifouling properties of the GO–Ag-MOF TFN membrane.
                             Type                         Experimental
                             Publication           ACS Applied Materials & Interfaces
                             Date                          November 2018
                             Links                       URL
                    
 
 Tags
silver, antifouling, membrane, forward osmosis, nanocomposite, chemical
chemistry, E. coli, water, metal-organic framework, bacteria
 
BibTex

@article{firouzjaei2018exploiting, title={Exploiting synergetic effects of graphene oxide and a silver-based metal--organic framework to enhance antifouling and anti-biofouling properties of thin-film nanocomposite membranes}, author={Firouzjaei, Mostafa Dadashi and Shamsabadi, Ahmad Arabi and Aktij, Sadegh Aghapour and Seyedpour, S Fatemeh and Sharifian Gh, Mohammad and Rahimpour, Ahmad and Esfahani, Milad Rabbani and Ulbricht, Mathias and Soroush, Masoud}, journal={ACS applied materials \& interfaces}, volume={10}, number={49}, pages={42967--42978}, year={2018}, publisher={ACS Publications} }